Planooraph co



A. PETIT. 4 TILTING PLATFORM FOR SIDE DUMPING CARS. APPLICAITION FILED AUG-20, 19!].

4 SHEETS-SHEET l.

A TTORNEYS.

THE COLUMBM i LANOaRAPH co., WASHING'TON, 0. c.

- A. PETIT. TILTING PLATFORM FOR SIDE DUMPING CARS. APPLICATION F lLED AUG.20, I917.

4 SHEETSSHEET 2- [N VENTORi A TTORNE YS.

THE COLUMBIA PLANOCIRAPH c0.v WASHINGTON. D. c.

Patented Aug. 19, 1919.

- AP PLICATION FILED AUG.20| I917.

Patented Aug. 19, 1919.

4 SHEETS-SHEET 3,

A T T ORNEYS.

APPLICATION FILED AUG.20, I9l7.

Patented Aug. 19, 1919.

4 SHEETS-SHEET 4- [{V VENTOR. M W v21 TTOR NE;

\115 COLUMBIA PLANOGRAPH cu WASHINGTON. n.

mans ram-1r, orn'nnnrh, emu.

. TILTING PLATFORM FOR SIDEFDUMPIITG CARS.

Specification of Letters Patent.

Patented Aug. 19, 1919.

' Application filed August 20.19 17. -sria1nd.1s7,251.

. i To all whom it may concern Be it known that I, ANoRns Pn'rrr, a citizen of the Republic ,of Cuba, .residen't'of Habana, cubaphave invented certain new a and useful Improvements in Tilting Platforms for Side-Dumping Cars, of which the following is a full, clear, and exact specification.

Thisinventlon relates to tilting platforms for side dumping cars and particularly to tilting platforms for side dumping cars upon the carriers to canemills and its object is to provide anew construction of tilting platform for receiving and discharging thelcontents of the cars by lateral inclination, this construction affording the advan- .tages of safety and rapidity inits operation.

I i Fig.

- Another object of the invention is to provide a new construction of operating mechanism for said platform, whlch 1s simple,

efficient and safe, and requires but slight eX- 1 ertion on the-part of theoperator.

This invention 1 is described with reference to the figuresof the annexed drawings, in which: I

Figure .1 is an upper plan ,view of the tilting platform for side dumping cars, constructed according to this invention.

Fig. 2v is a rear elevation of said tilting platform partially in section. 3-discloses a side elevation showing the tilting platform in the set position.

L Fig. 4 is a detail in vertical sectionof the cross piece connecting the motionmeans and said connecting cross piece.

the lever of the tilting platform.

, Fig. 5 is a detail in horizontal section of :Fig. 6 is an elevational detail (a-Ont of the platform bolsters engaging the respective bolster of the supportin base.

Fig. 7 is a detailed vertica tion2- of said bolster.

i The device comprisesa platform formed .1 by. a plurality of bolsters 2 consisting of ends by an I cross section. beam tand .by a

\ channel shaped beam 5- respectively, the bolstem 2 presenting at their lower edge a curve of large radius. a

beams of I cross -section connected at their the forward portion of Said latform rests upon a supporting baseembe ded' inthe ground, alongside ofthe transverse sec ends which 1 excavation 6 wherein the carrier of the cane .to the millmoves, and said base consists of a plurality of longitudinal beams 7 upon which are mounted a plurality of transverse "beams 8 corresponding vertically with the bolsters 2, the spaces between each two transverse beams 8 being filled with concrete material 9, to the upper surface of which a concave shape is given, as shown in Fig. 2. By virtue of the curved shape of the forward ends of the lower edges of bolsters 2, theplatform. can tiltupon the supporting base, and in order to prevent a slid-ingmove- .ment of the platform upon the supporting .base, a gearing is provided between, the bolsters 2 of the platform and the transverse beams 8 of the supporting base by means of a plurality of teeth 10 projecting upward-1y in a spaced manner from the top of the transverse beam 8 and a plurality of notches 11 formed :in aspaced manner in the lower curved edges of bolsters :2 of the platform, to which end a proper depth is given to said lower edge. On the bolsters 2 are track rails 12 upon which the loaded car is run. The pivotal center of the curvedlower surfaces of the bolsters 2 lies in a plane midway between the track rails and the fiatlower surfaces of said bolsters extend from said curved surfaces to a point below the inner track rail.

To the side beam 4' of-the platform there are connected by means of two triangular plates 14, two levers 15 angularly arranged, and consisting of I beamsfithe connection being reinforced by means of auxiliary pieces 16 secured by means of plates 17 and the converging ends of the bodiesof said levers 15 arebent so as to be connected by means of bolts to the similarly united and bent ends of the branches of a fork 18 which con-' sist of vertical plates connectedat their end by a vertical plate 19 having angularly bent are bolted within thebr'anches of said fork, each branchpresenting a horizontally extended opening 20 for thepurose hereinafter disclosed.

The fork 18 remains in a cross" relation to a vertical frame formed by'thr'e'e columns 213.22 and 23 of I cross section andf'each ial n t e lei fiza at th elsns sad n separated at a certain distance one from the other and connected at their upper-ends by means of a cast'bridge 24, so thatflthe fork 18 is located between the two columns 21- and 22 of said frame. Betweenthesetwo columns there is fixedandmesting onthe floor a cast base 25 presenting in its center a bearing 26 which receives the lowerbn'd of a vertical screw 27 whose upper end passes throughwthe, bridge 24 and is (he/Ida there by a plate bushing 27' which, at the same time, acts as its'bea'ring'and said screw has wedged at its other projecting end a gear 28'Ineshing with another gear 29 fixed at the upper end of 'a vertical shaft 30"rohand lever 38 for the operation thereof.

The vertical screw 27 passes through a sliding nut 39 provided at its sides with horizontal trunnions 40 which pass through openings in bracket bearings 41 fittedwithin' thejopenings 20' of the fork branches 18 and f slidable within said openings, the bearings '41 being held upon the trunnions '40 'by means of collars 42 fixed to these fore- I lock keys 43 and trunnions are extended 35 'towardand' near columns 21' and 22 and carry at their ends sleeves terminating in bearings 45 whichfit and slide withinzthe inner channel formedby .eachjcolumn 21 or 22 whose channelsserve as. guides to those bearings 45. '2 y The operation of the device as follows: Supposing that a loaded car '13 is placed" upon the rails 12 of the platformandheld I thereto by means of appropriate chains 46, 45 the hand lever 38 is rotated in the proper manner whereby the horizontal shaft 36 1 moves, by means of thefibeveled'gears'35 and 35, theyertical shaft 30 and, the gear 29 which inturn 'turns the othergear 28' and with this the vertical screw 27, which being prevented from moving vertically, raises the nut 39 and the trunnions 40which raise the branches of fork running along'its openings 20': and withithem; the levers 15 are .5 raised, thus tilting-the platform onthes'upporting base. until 'reachingYthe inclined position shown in Fig.4 in which,b v vii tue of own Weight, the loadof car .13'is discha'rged therefrom. 'It will be noted thatv tl platform is'neverseparated from the car support ng surface which is formedby the extension in cluded between the tworails 12 whereby said platform 'is always held at a stable "bal'ance'in any'position'thereof. 1

As it will be understood by the described constructions in case of rupture of the whole moving mechanism or any partthereof, the

platform would always remain inthe same position which it had when the rupture occurred since'it is impossible that the gravity force due to the weight of the car and ofthe'platform'gravitating on nut 39 may occasion the turning of screw 27.

--It; is obvious that the construction of the ing through the openings of the fork branlc he's', a screw'passing ac'r'oss the 'nut and 'rotatively mountedon fixed supports,-and

means for rotating the sc'rew. "2: In combines-eh, a'tiltingplatfo'rin for side' dumping cars, a lever fixed at a side of the ntfonrr I and terminated in forkthe "branches of whichhave a longitudinal a'p'er- Fture, a nut disposed between" the two branches 'df'the'fork -and-provided with tiunnions carrying block's slidably mounted iii 'the openings 'of 'th'e branches of 'the'fork. a

screw p a's'siiig'acro'ss the 'nut 'and 'rot'atively nmunted 5 on fixed supp ortfs serving a guide for the ends of the 'nut triihfiitih'; and means for rotating the screw.

3. In conibinationfa tilting-platform for side dumpingc'ar's, a" lever fixed 'a't side of the platform andtermin'ating 'in a forkthe branches of which have a' longitudinal aperture, a nut f'dispose'd" between the two branches of the fork and provided with lateral h posite trunnio'nfs carryingbearings slid-ably mounteddn the 'op'eningsof the branches ofthe"fork". a "screw passing-ve tically across the have nd rotatively' mounted by its ends"on a. fixed frame: said frame presenting vertical channels whl' dh-"serve' as a gulde for 'bearings cariled' on the ends of the nut triiiiiiioiis. and hand lever actuated means for'impartingTa rotary movel'nel'it to the screw; 2

4. A platform having a cartrack'therebn,

"said platform-"being mounted for transverse tiltingfmoveinent and being provided at one side 'with a -'l'aterally extending lever, "said lever havinga pair of spaced members each provided with a 'lo'ngitudinal slot'; bearings mounted for "I'riovein eht in", Said "Slots; a nut arranged between 'the' hesrihgsa d having outwardly Beyond the bearin s; a: vertical frame having side members provided with In testimony whereof I aflix my signature guide channels, bearings arranged for verin presence of two witnesses. tical movement in said guide channels and in which the outer ends of the journals are ANDRLS PETIT' 5 mounted, a. vertical screw mountedin said Witnesses: 7

frame and engaging said nuts; and means to LOREN H. RAY, operate said screw. CARLOS NOGUERAL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G.' 

